50847534

This number is a composite.

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The correct number of primes less than 10⁹. An incorrect value (56 lower than the correct value) first appeared in Meissel's work and has been erroneously called "Bertelsen's number" by several authors.

Submitted: 2006-08-11 02:01:16; Last Modified: 2008-01-30 17:28:00.